Widok standardowy
Widok MARC
Väisänen, Ulpu. (Personal Name)
Groundwater and factors affecting its quality / Ulpu Väisänen. - Espoo, 2004. (Geological Survey of Finland, Rovaniemi)
DISA online
Groundwater and factors affecting its quality / Ulpu Väisänen. - Espoo, 2004. (Geological Survey of Finland, Rovaniemi)
DISA online